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Reusable Designated-Verifier NIZKs for all NP from CDH
cryptographic protocols Zero-knowledge
2019/3/4
Non-interactive zero-knowledge proofs (NIZKs) are a fundamental cryptographic primitive. Despite a long history of research, we only know how to construct NIZKs under a few select assumptions, such as...
Designated-verifier pseudorandom generators, and their applications
non-interactive zero-knowledge computational Diffie-Hellman learning with errors
2019/3/4
We provide a generic construction of non-interactive zero-knowledge (NIZK) schemes. Our construction is a refinement of Dwork and Naor’s (FOCS 2000) implementation of the hidden bits model using verif...
New Constructions of Reusable Designated-Verifier NIZKs
cryptographic protocols Non-interactive zero-knowledge
2019/3/4
Non-interactive zero-knowledge arguments (NIZKs) for NP are an important cryptographic primitive, but we currently only have instantiations under a few specific assumptions. Notably, we are missing co...
Designated Verifier/Prover and Preprocessing NIZKs from Diffie-Hellman Assumptions
Non-interactive zero-knowledge proofs Diffie-Hellman assumptions Homomorphic signatures
2019/3/1
In a non-interactive zero-knowledge (NIZK) proof, a prover can non-interactively convince a verifier of a statement without revealing any additional information. Thus far, numerous constructions of NI...
On the Security of a Certificateless Strong Designated Verifier Signature Scheme
Certificateless cryptography Cryptanalysis Designated verifier signature
2018/11/8
Recently, Chen et al. proposed the first non-delegatable certificateless strong designated verifier signature scheme and claimed that their scheme achieves all security requirements. However, in this ...
Efficient Designated-Verifier Non-Interactive Zero-Knowledge Proofs of Knowledge
Zero-knowledge proofs, Non-interactive proofs
2017/10/30
We propose a framework for constructing efficient designated-verifier non-interactive zero-knowledge proofs (DVNIZK) for a wide class of algebraic languages over abelian groups, under standard assumpt...
A Universal Designated Verifier Signature Scheme with Non-Delegatability in the Standard Model
Designated Verifier Signature Universal Designated Verifier Signature Non-Delegatability
2017/9/1
In a designated verifier signature (DVS) scheme a signer creates a signature which is only verifiable by a designated verifier. A DVS is a useful scheme for authenticating a signer without disturbing ...
A Novel Multi-factor ID-based Designated Verifier Signature scheme
cryptographic protocols digital signatures
2016/12/24
In a classic digital signature scheme, the global community is capable of verifying a signature. In a designated verifier scheme (DVS), only the designated verifier has this capability. In a classic D...
Code-based Strong Designated Verifier Signatures: Security Analysis and a New Construction
code-based signatures strong designated verifier signatures coding theory
2016/12/10
Strong designated verifier signatures make the message authenticated only to a designated person called the designated verifier while privacy of the signer's identity is preserved. This primitive is u...
Signer-Anonymous Designated-Verifier Redactable Signatures for Cloud-Based Data Sharing
redactable signatures designated-verifier group signatures
2016/12/7
Redactable signature schemes allow to black out predefined
parts of a signed message without affecting the validity of the signature,
and are therefore an important building block in privacy-enhanci...
ECC-Based Non-Interactive Deniable Authentication with Designated Verifier
Designated Verifier Non-Interactive
2014/3/5
Recently, researchers have proposed many non-interactive deniable authentication (NIDA) protocols. Most of them claim that their protocols possess full deniability. However, after reviewing, we found ...
Delegation of Computation without Rejection Problem from Designated Verifier CS-Proofs
Shafi Goldwasser Huijia Lin Aviad Rubinstein
2012/3/26
We present a designated verifier CS proof system for polynomial time computations. The proof system can only be verified by a designated verifier: one who has published a public-key for which it knows...
A Novel Non-interactive Deniable Authentication Protocol with Designated Verifier on elliptic curve cryptosystem
deniability deniable authentication protocol Fiat-Shamir heuristic perfect zero-knowledge simulatability
2010/11/2
Recently, many non-interactive deniable authentication (NIDA) protocols have been proposed. They are mainly composed of two types, signature-based and shared-secrecy based. After reviewing these schem...
Strong designated verifier signature scheme: new definition and construction
Undeniable signature Designation of verifiers Discrete logarithm Random oracle model
2010/9/21
Recently, several strong designated verifier signature schemes have been proposed in the literature. In this paper, we first point out that such so-called strong designated verifier signature scheme i...
Efficient Strong Designated Verifier Signature Schemes without Random Oracles or Delegatability
strong designated verifier signature non-delegatability non-transferability
2009/12/29
Designated verifier signature (DVS) is a cryptographic primitive that allows a signer to convince
a verifier the validity of a statement in a way that the verifier is unable to transfer the convictio...